{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4723d92ab032140abfeba446f8d3bb39797d8919c6626b53326176835c82bbaf",
    "signature": "0x53fcd121aff13a1ec8a082603abadc7114b67e8a9ef3e7382972bc341d4c9acd35833dd793fbd584c9e48d728888a1bc52b301fca5426dd32fd140f745301b2c1b",
    "signer": "0xc3aB530bF94e132079deD2345017935048f7E31f",
    "userId": "431881098"
  }
}